Trade & Business Calculators
No ads, no sign-ups, instant results. Free calculators built for tradies and small business owners. Everything runs in your browser — nothing is sent to any server.
Markup & Margin Calculator
Convert between markup and margin percentages. See selling price, profit, and GST instantly.
Use CalculatorHourly Rate Calculator
Work out what to charge per hour based on your desired take-home, expenses, and super.
Use CalculatorConcrete Calculator
Calculate concrete volume for slabs, columns, and stairs. Get bag counts and cost estimates.
Use CalculatorPaint Calculator
Work out how much paint you need for walls and ceilings, minus doors and windows.
Use CalculatorTile Calculator
Calculate tiles needed for any area with grout spacing, waste allowance, and layout options.
Use CalculatorFence Calculator
Get post, paling, rail, and concrete quantities for timber or Colorbond fences.
Use CalculatorTimber & Decking Calculator
Calculate boards, joists, and bearers for your deck build with waste allowance.
Use CalculatorNeed more than a calculator?
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